Home / 12,000.32-18,000.64-3,235.20

Finding the Fourth Proportional to 12,000.32, 18,000.64 and 3,235.20

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Solution

The fourth proportional to 12,000.32, 18,000.64 and 3,235.20 is: 4,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.32 : 18,000.64 = 3,235.20 : x
  2. Step 2: Convert to fraction form
    12,000.32/18,000.64 = 3,235.20/x
  3. Step 3: Cross multiply
    12,000.32x = 18,000.64 × 3,235.20
  4. Step 4: Simplify right side
    12,000.32x = 58,235,670.53
  5. Step 5: Solve for x
    x = 58,235,670.53/12,000.32
  6. Step 6: Final answer
    x = 4,852.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.